Answer:
The first, 4th and 6th are rational.
Step-by-step explanation:
The second, third and 5th are irrational.
I want to know if anyone can help with a math textbook. It is page 302, evens only. Skip word problems. Show work if you can, if you can't, then it's alright.
Step-by-step explanation:
Hopefully I'm right,but what you do is add the ones with variables together so
Question 15
3a + 2 + 3a + 7so 3a+3a= 6a and 7+2=9
so you have to add the ones that are similar but never add
3a+7 because they are not the same37. 5x-2y
38. -3a+2b
Find the shaded area.
Answer: ≈ 21.46 m²
Step-by-step explanation:
Area of square = 10 x 10 = 100 m²
Area of circle = π(5²) = 25π m²
Area of total = 100 - 25π = 21.46018366
≈ 21.46 m²
Louis makes a model of a plane.
The wingspan of the model is 50 centimetres.
The wingspan of the real plane is 80 metres.
Work out the scale of the model.
Give your answer in the form 1:n
Answer:
1 : 1.6
For every centimeter on the model, it is 11.6 centimeters on the real plane
Step-by-step explanation:
The required value of the scale of the model in the form of 1:160.
Given that,
The wingspan of the model is 50 centimeter,
The wingspan of the real plane is 80 meter.
We have to determine,
The scale of the model and give your answer in the form 1 : n.
According to the question,
The wingspan of the model = 50 centimeter [tex]= \frac{50}{100} = 0.5m[/tex]
The wingspan of the real plane is 80 meter.
The ratio of the scale = 1:n
Therefore,
The equation of proportion is,
[tex]\frac{wingspan \ of \ the \ model}{wingspan\ of \ the \ palne} = \frac{1}{n}[/tex]
Putting all the values in the equation,
[tex]\frac{0.5}{80} = \frac{1}{n} \\\\n = \frac{1 \times 80}{0.5} \\\\n = 160[/tex]
The value of n = 160.
Hence, The required value of the scale of the model in the form of 1:160.
For the more information about Scale model click the link given below.
https://brainly.com/question/9448074
olution set for 8( 3x - 2)2(7x + 12)?
Find the length of side a.
It says solve for the variable I do t understand
Answer:
x=11
Step-by-step explanation:
If the function 5x + y = 1 has the domain {-2, 1, 6}, then what is the corresponding range?
A.
{-9, 6, 31}
B.
{9, -6, -31}
C.
{-11, 4, 29}
D.
{11, -4, -29}
Answer:
C. ????
Step-by-step explanation:
Answer: c
Step-by-step explanation:
Plz help I will give brainliest
Answer:
the last one
Step-by-step explanation:
a square's sides should be the same angle
Answer:
i believe its the last one but im not 100% sure
Step-by-step explanation:
3.
-5(m-4n-5)-3
7(p-6q8)-4
please help me
-5(m-4n-5)-3
7(p-6q8)-4
13
Answer:
= 222q^8 - 5m + 20n -37 + 21
Step-by-step explanation:
−5(m−4n−5)−37(p−6q8)−4
step 1
=(−5)(m)+(−5)(−4n)+(−5)(−5)+(−37)(p)+(−37)(−6q8)+−4
=−5m+20n+25+−37p+222q8+−4
step 2
=−5m+20n+25+−37p+222q8+−4
=(222q8)+(−5m)+(20n)+(−37p)+(25+−4)
=222q8+−5m+20n+−37p+21
The equation d = 3t represents the relationship between the distance in inches that a snail is from a certain rock and the time in minutes
Answer:
so would it be 3x 3 times pepepeppopo checkk
Use foil method to find (w+5)(w^2+3w)
Please help me ASAP
6 of 12
© Dale is following this recipe to make shortbread fingers.
Dale uses 150 g of butter.
How many shortbread fingers does he make?
Recipe: Makes 20 fingers
125 g butter
55 g sugar
180 g flour
A store marks up a laptop 150% from its original price of $299. There is a sale for 25% off all items in the store. What is the sale price for the computer?
Answer:
B. 336. 38
Step-by-step explanation:
So, what you want to do is multiply the original price ($299) by the first markup percentage (150%)
299*1.50= $448.50
that is your markup price!
then you have to do the sale % (25%)
so you'll multiply your (25%) by your new price ($448.50)
448.50*.25= $112. 125
THIS IS NOT YOUR ANSWER!
don't forget that!
you will then subtract the sale price ($112.125) by the upcharged price ($448.50)
448.50-112.125= 336. 375
Round up then there is your answer!
= $336. 38
hope this helps!!
Which number below is a perfect square? 15 19 16 20
Answer:
16
Step-by-step explanation:
4x4=16
Answer:
16
Step-by-step explanation:
4 x 4=16
The Richter scale magnitude reading m is given by m=log10x , where x represents the amplitude of the seismic wave causing ground motion. Determine the reading of an earthquake that is 10 times less intense than an earthquake that measures 4.5 on the Richter scale.
Answer: The reading would be 5.5 on the Richter scale.
Step-by-step explanation:
The intensity of an earthquake that measures 4.5 on the Ritcher scale can be found by solving:
4.5 = log₁₀(x)
for x.
remember that:
logₐ(x) = ln(x)/ln(a)
Then we can rewrite our equation as:
4.5 = ln(x)/ln(10)
4.5*ln(10) = ln(x)
we also know that:
ln(exp(x)) = exp(ln(x)) = x
Then we can apply the exponential equation to both sides to get:
exp( 4.5*ln(10)) = exp( ln(x) ) = x
exp( 4.5*ln(10)) = x
x = 31,622.8
Now, if we have an intensity 10 times larger than this, we will have:
x = 10*31,622.8 = 316,228
The reading on the Richter scale will be:
m = Log₁₀(316,228) = 5.5
Find the sum using fraction bars or a paper and pencil. Write your answer in simplest form. 5/6 + 3/9
₁ 1/6
21/18
8/15
₁ 4/9
The tiny numbers are the whole numbers
Help me asap please
⇔ω⇔
ФωФ
Answer:
8/15 bc im beautiful
Step-by-step explanation:
Answer:
imma need my points back
Step-by-step explanation:
What is the equation of a circle centered at the origin with radius 15 ?
HI. I really Need help. I will Mark Brainliest!
Answer:
the first 1 and the last 1 i think
Step-by-step explanation:
Answer:
I think is the first one 1/1÷ m/6 and the last 1/6 m
and if I'm correct the second one too. (m/6) (1)
Explanation:
Hope it helps!~
Good luck on your assignment!!
help ASAP ?!?? I’m struggling.
Answer:
B.
Step-by-step explanation:
C=3.14D
Circumference is equal to pi multiplied by the diameter, so 50 times 3.14 is equal to 157. 157 is closest to 160.
Answer:
B
Step-by-step explanation:
the actual circumference is 157.08 but it asks you to pick the closest one, which is 160. hope this helps!
Put these fractions in order starting with the smallest:
A-
7/10 3/5 9/20 23/30 4/5
B-
3/10 4/15 9/10 11/15 17/20
C-
9/4 4/3 5/3 7/4 7/5.
D-
17/7 23/7 24/5 17/5 11/35
Thanks<3
Answer:
A- 9/20 3/5 7/10 23/30 4/5
B- 4/15 3/10 11/15 17/20 9/10
C- 4/3 7/5 5/3 7/4 9/4
D- 11/35 17/7 23/7 17/5 24/5
a board game is designed for ages 12 and up Write the inequality that represents the problem situation.
Answer:
x<=12 that is a greater than or equal to sign btw
Graph a line with a y-intercept of 3 and containing the point (2, 5).
To graph a line, plot two points on the line.
Answer:
Step-by-step explanation:
Two groups are hiking at about the same speed . Mario’s group hikes for 2.5 hours Seemas group hikes for 4.7 hours and covers 8.8 more miles . How fast are the kickers going ? Solve the equation below to find out . 4.7x=2.5x+8.8
Answer: 18.8 miles
Step-by-step explanation:
Ww are given the equation 4.7x=2.5x+8.8 to solve the question. This will be:
4.7x = 2.5x + 8.8
Collect like terms.
4.7x - 2.5x = 8.8
2.2x.= 8.8
x = 8.8/2.2
x = 4
To know how fast the kickers are going will be
4.7x = 4.7 × 4 = 18.8 miles
PLZ HELP ME......WILL GIVE BRAINLIEST. THANKYOU!!!!. there are two pictures.
Step-by-step explanation:
The perimeter of the rectangle is 2(x+y)
area of the rectangle is xy
HELP PLEASEE Consider the line and triangles in the diagram, which of the following statements explains the relationship between the slope of the line and features of the triangles? (brainliest) (help!)
Answer: b
Step-by-step explanation:
add them then divide
Write an inequality relating NM and NL-
NM < NL
NM<_ NL
NM > NL
NM>_ NL
Answer:
NM > LN
Step-by-step explanation:
Here, we want to write an inequality
we should beat it in mind that, the greater the angle that a side of a triangle faces, the greater its length will be relatively
as we can see, the side NM faces the greater angle of 83, relative to the side LN that faces the angle of 56;
So we can conclude that;
NM > LN
Answer:
NM > LN
Step-by-step explanation:
Here, we want to write an inequality
we should beat it in mind that, the greater the angle that a side of a triangle faces, the greater its length will be relatively
as we can see, the side NM faces the greater angle of 83, relative to the side LN that faces the angle of 56;
So we can conclude that;
NM > LN
1. Which situation could be represented by y = 4x + 7?
a student started with $4 and saved $7 per week.
A package costs $7 plus $4 per pound to ship.
A skateboard weighs 4 pounds plus 7 ounces.
A recipe calls for 7 cups of flour and 4 cups of sugar.
2. What is the equation of the line through (5,8) and (2,2)?
y = 2x + 2
y = 2x - 2
y = 5x - 8
y =8x - 5
3. The slope of a line is -1/3 and the y-intercept is 3. What is the equation of this line?
y = 1/3 + 3
y = -1/3 + 3
y = 3x - 3
y = 3x - 1/3
4. What is the equation of the line that has a slope of 2 and goes through (3,7)?
y = 2x + 3
y = 1/2x + 7
y = 2x + 1
y = -2x + 1
5. Sammy is saving up to buy a PS5 plus. He has $40 and will save $60 per week. Which equation represents this situation?
1 point
y = 40x + 60
y + 60x + 40
y = 60x - 40
y = 40x - 60
6. Sammy is saving up to buy a PS5 plus. He has $40 and will save $40 per week. How long will it take Sammy to save the money if the PS5 plus costs $600?
11 weeks
12 weeks
13 weeks
14 weeks
7. Steph made $360 working 30 hours last week. Sam made $195 working 15 hours last week. Who made more per hour?
Steph
Sam
Answer:
B, A package costs $7 plus $4 per pound to ship. B, y = 2x - 2 B, y = -1/3x + 3 C, y = 2x + 1 B, y = 60x + 40 D, 14 weeks (600 = 40 + 40x)Sam, ($13hr)i hope this helps, good luck :)
How can you find the town with a temperature that is the opposite of -4°C? Name the town with that temperature
Answer:
Town B
Step-by-step explanation:
Given
See attachment
Required
Which town answers the question
From the attachment, the temperature of town J is -4°C.
This can be represented as:
[tex]J = -4^{\circ}C[/tex]
The opposite of -4 is 4.
So, the town with the temperature that is opposite of -4°C must have a temperature of 4°C.
From the attachment, the temperature of town B is 4°C.
This can be represented as:
[tex]B = 4^{\circ}C[/tex]
Hence, the answer to the question is town B
Which of the following expressions has a value that is greater than -1? Select all that apply.
A) -6 + 6
B) -8 - (-11)
C) 9 + (-7)
D) -3 – 5
E) -8 + (-2)
Answer:
A. -6+6=0 0>-1
C. 9+(-7)=2 2>-1